package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.github.xiaoymin.knife4j.core.util.CollectionUtils;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.AddressBookService;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import org.aspectj.weaver.ast.Or;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RequestBody;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collector;
import java.util.stream.Collectors;
import java.util.stream.Stream;

@Service
public class OrderServiceImpl implements OrderService {
    @Value("${sky.shop.address}")
    private String shopAddress;

    @Value("${sky.baidu.ak}")
    private String ak;

    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private AddressBookService addressBookService;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private WebSocketServer webSocketServer;
    /**
     * 检查客户的收货地址是否超出配送范围
     * @param address
     */
    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address",shopAddress);
        map.put("output","json");
        map.put("ak",ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address",address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("收货地址解析失败");
        }

        //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin",shopLngLat);
        map.put("destination",userLngLat);
        map.put("steps_info","0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if(distance > 5000){
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }
    }
    /**
     * 提交订单
     *
     * @param ordersSubmitDTO
     * @return
     */
    @Transactional
    @Override
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {
        //判断地址铺是否为空
        AddressBook addressBook = addressBookService.getById(ordersSubmitDTO.getAddressBookId());
        if (addressBook == null){
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }

        //判断购物车是否为空
        ShoppingCart shoppingCart = new ShoppingCart();
        shoppingCart.setUserId(BaseContext.getCurrentId());
        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
        if (list == null || list.size() == 0){
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }

        //判断用户是否超出配送距离
        checkOutOfRange(addressBook.getCityName() + addressBook.getDistrictName() + addressBook.getDetail());
        Orders orders = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO,orders);
        orders.setOrderTime(LocalDateTime.now());
        orders.setUserId(BaseContext.getCurrentId());
        orders.setPayStatus(Orders.PAID);
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setPhone(addressBook.getPhone());
        orders.setConsignee(addressBook.getConsignee());
        AddressBook address = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        //orders.setAddress();
        orders.setAddress(address.getDetail());
        orderMapper.insert(orders);

        //插入订单明细表数据
        List<OrderDetail> orderDetailList = new ArrayList<>();
        for (ShoppingCart cart : list) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart,orderDetail);
            orderDetail.setOrderId(orders.getId());
            orderDetailList.add(orderDetail);
        }
        orderDetailMapper.insertBatch(orderDetailList);
        //清空购物车
        shoppingCartMapper.clean(BaseContext.getCurrentId());

        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(orders.getId())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .orderTime(orders.getOrderTime())
                .build();

        return orderSubmitVO;
    }
    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

//        //调用微信支付接口，生成预支付交易单
//        JSONObject jsonObject = weChatPayUtil.pay(
//                ordersPaymentDTO.getOrderNumber(), //商户订单号
//                new BigDecimal(0.01), //支付金额，单位 元
//                "苍穹外卖订单", //商品描述
//                user.getOpenid() //微信用户的openid
//        );
//
//        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
//            throw new OrderBusinessException("该订单已支付");
//        }
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("code","ORDERPAID");
        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));
        Integer OrderPaidStatus = Orders.PAID;
        Integer OrderStatus = Orders.TO_BE_CONFIRMED;
        LocalDateTime checkOutTime = LocalDateTime.now();
        Orders orders = new Orders();
        orders.setPayStatus(OrderPaidStatus);
        orders.setStatus(OrderStatus);
        orders.setCheckoutTime(checkOutTime);
        orderMapper.update(orders);
        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();
        orderMapper.update(orders);

        Map map = new HashMap();
        map.put("type",1);
        map.put("orderId",ordersDB.getId());
        map.put("content","订单号:" + outTradeNo);

        String json = JSON.toJSONString(map);
        webSocketServer.sendToAllClient(json);
    }

    /**
     * 历史订单分页查询
     * @param ordersPageQueryDTO
     * @return
     */
    @Override
    public PageResult getHistoryOrders(OrdersPageQueryDTO ordersPageQueryDTO) {

        PageHelper.startPage(ordersPageQueryDTO.getPage(),ordersPageQueryDTO.getPageSize());

        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        Page<Orders> page = orderMapper.page(ordersPageQueryDTO);
        List<OrderVO> list = new ArrayList<>();

        if(page.getTotal() > 0 && page.getResult() != null){
            for (Orders orders : page) {
                Long ordersId = orders.getId();
                List<OrderDetail> orderDetailList = orderDetailMapper.getByOrdersId(ordersId);
                OrderVO orderVO = new OrderVO();

                BeanUtils.copyProperties(orders,orderVO);
                orderVO.setOrderDetailList(orderDetailList);
                list.add(orderVO);
            }
        }
        return new PageResult(page.getTotal(),list);
    }

    /**
     * 查询订单详细数据
     * @param id
     * @return
     */
    @Override
    public OrderVO getOrdersDetail(Long id) {
        OrderVO orderVO = new OrderVO();
        Orders orders = orderMapper.getById(id);
        BeanUtils.copyProperties(orders,orderVO);
        List<OrderDetail> byOrdersId = orderDetailMapper.getByOrdersId(id);
        orderVO.setOrderDetailList(byOrdersId);
        return orderVO;
    }

    /**
     * 取消订单
     * @param id
     */
    @Override
    public void cancelOrder(Long id) {
        Orders orderById = orderMapper.getById(id);
        if (orderById == null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        if (orderById.getStatus() > 2) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setPayStatus(Orders.REFUND);
        orders.setId(id);
        orders.setStatus(Orders.CANCELLED);
        orders.setCheckoutTime(LocalDateTime.now());
        orders.setCancelReason("用户取消");
        orderMapper.update(orders);
    }

    @Override
    public void repetitionOrder(Long id) {
        Long userId = BaseContext.getCurrentId();
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrdersId(id);

        List<ShoppingCart> shoppingCartList = orderDetailList.stream().map(orderDetail -> {

            ShoppingCart shoppingCart = new ShoppingCart();
            BeanUtils.copyProperties(orderDetail, shoppingCart);
            shoppingCart.setUserId(userId);
            shoppingCart.setCreateTime(LocalDateTime.now());

            return shoppingCart;
        }).collect(Collectors.toList());


        shoppingCartMapper.insertBatch(shoppingCartList);
    }

    /**
     * 订单搜素
     * @param ordersPageQueryDTO
     * @return
     */
    @Override
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(),ordersPageQueryDTO.getPageSize());

        Page<Orders> orders = orderMapper.page(ordersPageQueryDTO);

        List<OrderVO> orderVOList =  getOrderVOList(orders);
        return new PageResult(orders.getTotal(),orderVOList);
    }

    /**
     * 各个状态的订单数量统计
     * @return
     */
    @Override
    public OrderStatisticsVO statistics() {
        OrderStatisticsVO orderStatisticsVO = new OrderStatisticsVO();
        Orders orders = new Orders();
        orders.setStatus(Orders.REFUND);
        Integer count = orderMapper.getCountByStatus(orders);
        orderStatisticsVO.setToBeConfirmed(count);
        orders.setStatus(Orders.CONFIRMED);
        count = orderMapper.getCountByStatus(orders);
        orderStatisticsVO.setConfirmed(count);
        orders.setStatus(Orders.DELIVERY_IN_PROGRESS);
        count = orderMapper.getCountByStatus(orders);
        orderStatisticsVO.setDeliveryInProgress(count);
        return orderStatisticsVO;
    }

    /**
     * 接单
     * @param ordersDTO
     */
    @Override
    public void confirm(OrdersDTO ordersDTO) {
        Orders orders = new Orders();
        orders.setId(ordersDTO.getId());
        orders.setStatus(Orders.CONFIRMED);
        orderMapper.update(orders);
    }

    /**
     * 拒单
     * @param ordersRejectionDTO
     */
    @Override
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) {
        Long id = ordersRejectionDTO.getId();
        Orders orderMapperById = orderMapper.getById(id);
        if (orderMapperById.getStatus() != Orders.REFUND){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders = new Orders();
        if (orderMapperById.getPayStatus() == Orders.PAID){
            orders.setPayStatus(Orders.REFUND);
        }
        orders.setId(ordersRejectionDTO.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setRejectionReason(ordersRejectionDTO.getRejectionReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    /**
     * 派单
     * @param id
     */
    @Override
    public void delivery(Long id) {
        Orders orders = new Orders();
        orders.setStatus(Orders.DELIVERY_IN_PROGRESS);
        orders.setId(id);
        orderMapper.update(orders);
    }

    /**
     * 订单取消
     * @param ordersRejectionDTO
     */
    @Override
    public void cancel(OrdersRejectionDTO ordersRejectionDTO) {
        Orders orderMapperById = orderMapper.getById(ordersRejectionDTO.getId());

        Orders orders = new Orders();
        if (orderMapperById.getPayStatus() == Orders.REFUND){
            orders.setPayStatus(Orders.PAID);
        }
        orders.setId(ordersRejectionDTO.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason(ordersRejectionDTO.getRejectionReason());
        orders.setCancelTime(LocalDateTime.now());

        orderMapper.update(orders);
    }

    /**
     * 完成订单
     * @param id
     */
    @Override
    public void complete(Long id) {
        Orders orders = new Orders();
        orders.setId(id);
        orders.setStatus(Orders.COMPLETED);
        orders.setDeliveryTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    @Override
    public void reminder(Long id) {
        Orders orders = orderMapper.getById(id);
        String number = orders.getNumber();
        Map map = new HashMap();
        map.put("type",2);
        map.put("orderId",id);
        map.put("content","订单号:" + number);

        String jsonString = JSON.toJSONString(map);

        webSocketServer.sendToAllClient(jsonString);

    }

    private List<OrderVO> getOrderVOList(Page<Orders> page) {
        // 需要返回订单菜品信息，自定义OrderVO响应结果
        List<OrderVO> orderVOList = new ArrayList<>();
        List<Orders> ordersList = page.getResult();
        if (!CollectionUtils.isEmpty(ordersList)) {
            for (Orders orders : ordersList) {
                // 将共同字段复制到OrderVO
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders, orderVO);
                String orderDishes = getOrderDishesStr(orders);

                // 将订单菜品信息封装到orderVO中，并添加到orderVOList
                orderVO.setOrderDishes(orderDishes);
                orderVOList.add(orderVO);
            }
        }
        return orderVOList;
    }
    /**
     * 根据订单id获取菜品信息字符串
     *
     * @param orders
     * @return
     */
    private String getOrderDishesStr(Orders orders) {
        // 查询订单菜品详情信息（订单中的菜品和数量）
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrdersId(orders.getId());

        // 将每一条订单菜品信息拼接为字符串（格式：宫保鸡丁*3；）
        List<String> orderDishList = orderDetailList.stream().map(x -> {
            String orderDish = x.getName() + "*" + x.getNumber() + ";";
            return orderDish;
        }).collect(Collectors.toList());

        // 将该订单对应的所有菜品信息拼接在一起
        return String.join("", orderDishList);
    }


}
